Improvement in oil and gas stoves



3Sheets--Sheet1.' H. A. SEYMOUR, Jr.

OIL AND GAS STOVES. No.183,979'. Patented Oct.31, 1876.

2 INVENTOR 3 Sheets-Sheet 2.

H. A. SEYMOUR, Jr. OIL AND us STOVES.

Patented Oct. 31. 1876.

INV ENTOR THE GRAPHIC COJ'LY.

3 Sheets-Sheet 3.

H. A. SEYMOUR, Jr. OIL AND GAS STOVES. No.183,979. Patented 0ct.31.1876.

) WITNESSES INVENTOR i "g HE GRAPHIC CO.NY

UNITED STATES PATENT ()FFICE.

HENRY A. SEYMOUR, JR, OF WASHINGTON, DISTRICT OF COLUMBIA.

IMPROVEMENT IN OIL AND GAS STOVES.

Specification forming part of Letters Patent No. 183,979, dated October31, 1876; application filed October 7, 1876.

To all whom it may concern Be it known that I, HENRY A. SEYMOUR, Jr., ofWashington, in the county of Washin gton and District of Columbia, haveinvented certain new and useful Improvements in Oil and Gas Stoves; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use it, reference being had to theaccompanying drawings, which form part of this specification.

My invention relates to certain improvements in oil and gas stoves.

Figure 1 represents a vertical section of my improved stove as adaptedfor cooking purposes. Fig. 2 is a side elevation of the same. Figs. 5and 6, respectively, represent a vertical section and side elevation ofthe stove shown in Figs. 1 and 2 with cylinders extended to constitute aheating-stove. Figs. 3, 4, 7,8, 9, and 10 show modified forms ofconstruction embodying my invention.

, The object of my invention is to construct an oil or gas stove in sucha manner that it shall be specially adapted for use either for cookingor heating purposes, and easily convertible into either form of stove,when desired.

My invention consists, first, in an oil or gas stove, the bodypf whichconsists, essentially, of a stationary and a movable cylinder, thelatter provided with an opening at its upper end for the reception ofcooking utensils or vessels; second, an oil or gas stove provided withan extensible cylinder, and means whereby said cylinder may be securedto the stationary cylinder at any desired height; third, an oil or gasstove constructed with an inner and outer cylinder relatively arrangedto form a dead-air space about the interior cylinder of the stove;fourth, an oil or gas stove constructed with a fixed and avertically-adjustable cylinder, the said cylinder adapted to form adead-air space about the fixed cylinder, or to convert both cylindersinto heat-radiating surfaces; fifth, in the several details ofconstruction and combination of parts as will be hereinafter described,and pointed out in the claims.

In Fig. 1, A represents the base of an oilstove, and B B the wicks, thelatter provided with devices properly arranged for regulating theiradjustment. The oil-reservoir and wickraising attachment may be of anyform or style, as my improvement is equally well adapted for use withany of the oil or gas burners now employed. 0 is the outer shell orcylinder of the stove, and is supported by standard 0 secured to thebase or oil-receptacle A, thereby forming an open space between thelower end of the cylinder 0 and the top of base portion A, through whichspace air has free ingress to the flame or point of 00111- bustion.Within the outer cylinder 0 is placed a smaller cylinder, D, whichlatter is supported against lateral movement at its upper end by 'meansof the inwardly'projecting flange G,

secured to the upper end of cylinder 0, and at its lower end by theflange 1), attached to the lower end of cylinder D. The cylinders U andD, thus constructed and arranged, form a dead-air space, E, between theouter and inner cylinders, which space serves to retain and preserve theheat for cooking purposes. The dead-air space E may be formed of anydesired dimensions, as it can be readily regulated by varying therelative diameters of the outer and inner cylinders. The upper end ofthe interior cylinder may be constructed to be nearly or quite flushwith the outer cylinder, or it may be formed to slightly project abovethe outer cylinder, as shown in Figs. 1 and 2, in which case theprojecting portion is perforated, as at a, to allow of a free draftthrough the interior cylinder. The upper plate a of the interiorcylinder D is provided with an opening, I), of any desired size, for there ception of cooking or heating utensils or vessels, and about saidopening I) is secured a serrated ring, I), or equivalent device, toallow of the passage of the heat about the vessel seated therein.

A cooking-stove constructed as above described utilizes a largepercentage of the heat generated from the oil or gas, as the heat isconfined within two cylinders, which together constitute the opposingwalls of a dead-air space, E; and also another important advantageresults from the construction shown-=- namely, the atmosphere about thestove, when used for cooking purposes, is but slightly affected by theheat of the stove, as the deadair space obstructs and prevents theradiation of heat from the outer cylinder of the stove, therebyrendering it especially desirable for use for cooking purposes duringthe summer months.

When it is desired to convert the cookingstove shown in Figs. 1 and 2into a heatingstove, the interior cylinder D is raised to the positionrepresented in Figs. 5 and 6, and readily secured at any desired heightby means of a slide or bolt, d, the inner end of which is adapted toengage with the ratchet-bar d, secured to the side of the innercylinder, the upper flange 0 being cut away to receive the ratchet-bard, and serving as a guide to prevent the rotation of the inner cylinderD. The cylinders G and D, when thus extended, have their interiorsurfaces presented to the direct contact of the currents of heat fromthe burners, and the dead-air space E (shown in Fig. 1) is convertedinto a radiatingsurface, and an additional radiating-surface equal tothe area of the inner cylinder D is formed thereby. Thus thestoveheretofore described as specially adapted for cooking purposes whenin a contracted state-possesses all the essentials and qualifications ofa complete and economical heating-stove when extended to the positionlast referred to.

The heat of the stove may be readily graduated by adjusting the innercylinder D at different heights, and thus render it useful for securingany desired temperature in the apartment in which it is placed; and alsodifferent articles of food may be subjected to varying degrees of heat,as desired.

In Fig. 3 the inner cylinder F is stationary, and the outer cylinder Gconstructed to be vertically adjusted thereon. In a stove of thisconstruction the inner cylinder is preferably formed with anoutwardly-turned flange, e, secured to its upper end, upon which flangerests an inwardly-proj ectin g flan ge, f, attached to the upper end ofthe outer and movable cylinder G. Cylinder G is also provided with alower flange, g, thus forming a dead-air space, G, between the inner andouter cylinder when the stove is in a contracted position and adaptedfor cooking purposes.

Figs. 7 and 8 show the cooking-stove represented by Figs. 3 and 4extended to form a heating-stove. The outer cylinder G is raised andsecured to the inner fixed cylinder F by means of a pawl, g, whichengages with a ratchet-bar, h, secured to the side of cylinder F. Lugsor arms are attached to the inner side of cylinder G, to fit against thesides of the ratchet-bar, and thus prevent the rotation of the outercylinder and insure certain means of adjustment between the twocylinders. The top flange of the outer and movable cylinder isperforated at 'i for the passage of heat, and

the opening in the top of the stove is constructed as shown, or asrepresented in Fig. 1.

Figs. 9 and 10 represent another modification of my improvement. Irepresents the inner and fixed cylinder, mounted on any of thewell-known oil or gas burners, and J is the outer andvertically-adjustable cylinder. These cylinders are provided withopenings 70, l, and m, which openings may be of any desired size,location, and sufficient in number to insure a free induction andeduction of air to and from the burners. Cylinders I J are each formedwith a spiral corrugation or groove, n 0, extending their entire length,and of such relative size and form that the spiral corrugation of theinner cylinder snugly fits within the corresponding corrugation orgroove of the outer cylinder. The outer cylinder J is provided with ahandle, K, secured to its lower edge, and to said handle is attached asliding bolt, 1). The inner cylinder is perforated to allow the slidingbolt p to be inserted therein at any desired point, and thus secure anydesired adjustment of the two cylinders.

The cylinders, when in the. position shown in Fig. 9, are adapted forcooking purposes, and when extended, as represented in Fig. 10, areintended for heating purposes.

It is evident that any desired adjusting mechanism may be employed inlieu of the special devices shown and described; and it is also evidentthat the several cylinders may be perforated as desired, Hence I do notlimit myself to the exact construction of devices shown, but purposeusing any equivalent means for carrying my invention into effect.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. An oil or gas stove constructed with fixed and movable cylinders, themovable cylinder provided with an opening at its upper end for thereception of cooking vessels or utensils.

2. The body of an oil or gas stove formed of inner and outer cylinders,one of said cylinders provided with an opening at its upper end toreceive a lid or cooking-vessel, and adapted to be raised and lowered,and means whereby said movable cylinders may be secured to the fixedcylinder at any desired height. p

3. The body of an oil or gas stove formed of an inner and outercylinder, one of said cylinders being movable, and adapted to bevertically adjusted relative to the fixed cylinder, the said cylindersconstructed with flanged ends, to constitute, when not extended, anintervening dead-air space.

4.. The body of an oil or gas stove formed of a fixed and a movablecylinder, the said cylinders adapted to form a dead-air space about thefixed cylinder,-and also to be readily converted into heat-radiatingsurfaces.

secured thereto, of the movable cylinder, provined with a pawl orsliding bar, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this6th day of October, 1876.

HENRY A. SEYMOUR, JR.

Witnesses:

ED. 1. NOTTINGHAM, F. O. MGCLEARY.

